opencreturn

Theexplain_openfunctionisusedtoobtainanexplanationofanerrorreturnedbytheopen(2)systemcall.Theleastthemessagewillcontainisthevalue ...,2017年11月12日—Iwroteaprogramthatcreatesanemptytextfile,andprintsSucceedifitsucceeds.Compilewithccmain.c#include#include ...,Theopen()functionshallreturnafiledescriptorforthenamedfile...TheDESCRIPTIONofO_EXCLisupdatedinresponsetoIEEEPASCInterpreta...

參考資訊如下
explain_open(3): explain open errors

The explain_open function is used to obtain an explanation of an error returned by the open(2) system call. The least the message will contain is the value ...

How to deal with open() returning 1

2017年11月12日 — I wrote a program that creates an empty text file, and prints Succeed if it succeeds. Compile with cc main.c #include <stdio.h> #include ...

int openat(int fd, const char *path, int oflag, .. ...

The open() function shall return a file descriptor for the named file ... The DESCRIPTION of O_EXCL is updated in response to IEEE PASC Interpretation 1003.1c #48 ...

open

Upon successful completion, the function shall open the file and return a non-negative integer representing the lowest numbered unused file descriptor.

open(2)

The return value of open() is a file descriptor, a small, nonnegative ... C library/kernel differences Since glibc 2.26, the glibc wrapper function for open ...

open(3): open file - Linux man page

Upon successful completion, the function shall open the file and return a non-negative integer representing the lowest numbered unused file descriptor.

Opening and Closing Files (The GNU C Library)

The normal return value from open is a non-negative integer file descriptor. In the case of an error, a value of -1 is returned instead. In addition to the ...

open函数的返回值可能是0，1，2这三个中的任意一个吗？ 原创

2014年2月15日 — 我一直觉得open的返回值最小是3，但是自己写的代码出来的结果却是0，纳闷啊。。。 打印的结果是：. file descriptor is 0 dup2 return value:4 dup return ...